The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/d5dca4f761e38df0d5d4d319b3d5d6bbe624c2ad

commit d5dca4f761e38df0d5d4d319b3d5d6bbe624c2ad
Author: Sammie Quon <sammiequon@google.com>
Date: Wed Mar 07 18:14:52 2018

cros: Remove disable auto hide title bar in tablet mode flag.

Test: trybots
Bug:  764393 
Change-Id: I4122ec6a4e722cde7bb048b72e9d579d6edbb151
Reviewed-on: https://chromium-review.googlesource.com/952575
Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: Sammie Quon <sammiequon@chromium.org>
Cr-Commit-Position: refs/heads/master@{#541503}
[modify] https://crrev.com/d5dca4f761e38df0d5d4d319b3d5d6bbe624c2ad/ash/public/cpp/ash_switches.cc
[modify] https://crrev.com/d5dca4f761e38df0d5d4d319b3d5d6bbe624c2ad/ash/public/cpp/ash_switches.h
[modify] https://crrev.com/d5dca4f761e38df0d5d4d319b3d5d6bbe624c2ad/ash/wm/tablet_mode/tablet_mode_controller.cc
[modify] https://crrev.com/d5dca4f761e38df0d5d4d319b3d5d6bbe624c2ad/ash/wm/tablet_mode/tablet_mode_controller.h
[modify] https://crrev.com/d5dca4f761e38df0d5d4d319b3d5d6bbe624c2ad/chrome/browser/about_flags.cc
[modify] https://crrev.com/d5dca4f761e38df0d5d4d319b3d5d6bbe624c2ad/chrome/browser/ui/ash/tablet_mode_client.cc
[modify] https://crrev.com/d5dca4f761e38df0d5d4d319b3d5d6bbe624c2ad/chrome/browser/ui/ash/tablet_mode_client.h
[modify] https://crrev.com/d5dca4f761e38df0d5d4d319b3d5d6bbe624c2ad/chrome/browser/ui/views/apps/chrome_native_app_window_views_aura_ash.cc
[modify] https://crrev.com/d5dca4f761e38df0d5d4d319b3d5d6bbe624c2ad/chrome/browser/ui/views/frame/browser_non_client_frame_view_ash.cc
[modify] https://crrev.com/d5dca4f761e38df0d5d4d319b3d5d6bbe624c2ad/chrome/browser/ui/views/frame/immersive_mode_controller_ash.cc